access courses - Query with criteria using in another query

Access tip:

Splittng a database

Split your database into two (at least).

Keep all of your code, forms, reports, etc. in one 'code' database and all of your tables in another 'data' database which is then linked to the 'code' database.

This makes modifications, updates and back-ups that much easier and allows you to work on a new version of your 'code' database without affecting existing users. It also makes it easier should you wish to convert a single user databases into a multi-user networked version.

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